3-Cyano-2-methylphenylboronic acid is primarily used in organic synthesis as a building block for the preparation of more complex molecules. It is particularly valuable in Suzuki-Miyaura cross-coupling reactions, where it acts as a boronic acid partner to form biaryl compounds. These reactions are widely employed in the pharmaceutical industry for the synthesis of active pharmaceutical ingredients (APIs) and intermediates. Additionally, it serves as a precursor in the development of organic materials, such as polymers and liquid crystals, due to its ability to introduce functional groups into aromatic systems. Its cyano and boronic acid groups make it versatile for further chemical modifications, enhancing its utility in medicinal chemistry and material science.